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Cobaltkoritnigite

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About CobaltkoritnigiteHide

Formula:
(Co,Zn)(HAsO4) · H2O
Colour:
Pale Light purple to intense purple, pale rose red to intense purple-rose
Lustre:
Sub-Vitreous, Greasy, Silky, Dull
Hardness:
2 - 3
Specific Gravity:
3.44 (Calculated)
Crystal System:
Triclinic
Name:
Named by K. Schmetzer, W. Horn, and O. Medenbach in 1981 for the cobalt analog of koritnigite.
Isostructural with:
Small (1 mm or less) acicular crystals in dense radial sprays.
May be confused with erythrite.
Compare also burgessite.


Classification of CobaltkoritnigiteHide

Approved
Approval Year:
1980
8.CB.20

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
B : With only medium-sized cations, RO4:H2O = 1:1
39.1.4.2

39 : HYDRATED ACID PHOSPHATES,ARSENATES AND VANADATES
1 : A[HXO4]·xH2O
20.10.6

20 : Arsenates (also arsenates with phosphate, but without other anions)
10 : Arsenates of Co and Ni

Physical Properties of CobaltkoritnigiteHide

Sub-Vitreous, Greasy, Silky, Dull
Transparency:
Transparent, Translucent
Colour:
Pale Light purple to intense purple, pale rose red to intense purple-rose
Streak:
Pale poink
Hardness:
2 - 3 on Mohs scale
Hardness Data:
Estimated
Tenacity:
Brittle
Cleavage:
Perfect
{010 perfect; {100} good
Density:
3.44 g/cm3 (Calculated)
Comment:
NJMM 257 (1981)

Optical Data of CobaltkoritnigiteHide

Type:
Biaxial (+)
RI values:
nα = 1.646 nβ = 1.668 nγ = 1.705
2V:
Measured: 78° , Calculated: 78°
Birefringence:
0.059
Max Birefringence:
δ = 0.059
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
weak
Optical Extinction:
X ^ b = 3°, Y ^ a = 12.5°
Pleochroism:
Strong
Comments:
X=deep violet, Y=reddish violet; Z=bluish violet

Chemical Properties of CobaltkoritnigiteHide

Formula:
(Co,Zn)(HAsO4) · H2O
IMA Formula:
Co(AsO3OH) · H2O

Crystallography of CobaltkoritnigiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Setting:
P1
Cell Parameters:
a = 7.95 Å, b = 15.83 Å, c = 6.67 Å
α = 90.9°, β = 96.6°, γ = 90.0°
Ratio:
a:b:c = 0.502 : 1 : 0.421
Unit Cell V:
833.74 ų (Calculated from Unit Cell)
Z:
8
Comment:
NJMM 257 (1981)

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0015784CobaltkoritnigiteZettler F, Riffel H, Hess H, Keller P (1979) Cobalthydrogenarsenat-monohydrat. Darstellung und kristallstruktur Zeitschrift fur Anorganische und Allgemeine Chemie 454 134-1441979synthetic0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.94 Å(100)
7.07 Å(20)
3.82 Å(50)
3.25 Å(40)
3.23 Å(40)
3.14 Å(70)
2.69 Å(30)
2.46 Å(40)
Comments:
ICDD 35-499

Type Occurrence of CobaltkoritnigiteHide

Geological Setting of Type Material:
Oxidized cobalt ore, post-mining
Associated Minerals at Type Locality:

Synonyms of CobaltkoritnigiteHide

Other Language Names for CobaltkoritnigiteHide

Relationship of Cobaltkoritnigite to other SpeciesHide

Other Members of this group:
KoritnigiteZn(HAsO4) · H2OTric. 1 : P1
MagnesiokoritnigiteMg(AsO3OH)·H2OTric. 1 : P1

Common AssociatesHide

Associated Minerals Based on Photo Data:
4 photos of Cobaltkoritnigite associated with ErythriteCo3(AsO4)2 · 8H2O
2 photos of Cobaltkoritnigite associated with KoritnigiteZn(HAsO4) · H2O
1 photo of Cobaltkoritnigite associated with Moorhouseite(Co,Ni,Mn)SO4 · 6H2O
1 photo of Cobaltkoritnigite associated with SkutteruditeCoAs3
1 photo of Cobaltkoritnigite associated with BaryteBaSO4

Related Minerals - Nickel-Strunz GroupingHide

8.CB.05SerrabrancaiteMnPO4 · H2OMon. 2/m : B2/b
8.CB.10HureauliteMn2+5(PO3OH)2(PO4)2 · 4H2OMon. 2/m : B2/b
8.CB.10SainfelditeCa5(AsO4)2(AsO3OH)2 · 4H2OMon. 2/m : B2/b
8.CB.10VillyaelleniteMnMn2Ca2(AsO4)2(HAsO4)2 · 4H2OMon. 2/m : B2/b
8.CB.10UM1997-09-AsO:CaHMgZn(Mg,Ca,Zn)5(AsO4)2(HAsO4)2 · 4H2OMon.
8.CB.10NyholmiteCd3Zn2(AsO4)2(HAsO4)2 · 4H2OMon. 2/m : B2/b
8.CB.10MiguelromeroiteMnMn2Mn2(AsO4)2(HAsO4)2 · 4H2OMon. 2/m : B2/b
8.CB.15FluckiteCaMn2+(AsO3OH)2 · 2H2OTric. 1 : P1
8.CB.15KrautiteMn(HAsO4) · H2OMon. 2 : P21
8.CB.20KoritnigiteZn(HAsO4) · H2OTric. 1 : P1
8.CB.25YvoniteCu(HAsO4) · 2H2OTric.
8.CB.30GeminiteCu(HAsO4) · H2OTric.
8.CB.35SchubneliteFe3+VO4 · H2OTric.
8.CB.40RadovaniteCu2Fe3+(AsO4)(HAs3+O3)2 · H2OOrth. mmm (2/m 2/m 2/m) : Pnma
8.CB.45KazakhstaniteFe3+5V4+3V5+12O39(OH)9 · 9H2OMon.
8.CB.50KolovratiteNixZny(VO4)0.67(x+y) · nH2O
8.CB.55IrhtemiteCa4Mg(AsO4)2(HAsO4)2 · 4H2OMon.
8.CB.60BurgessiteCo2(H2O)4[AsO3(OH)]2(H2O)Mon. 2/m

Related Minerals - Dana Grouping (8th Ed.)Hide

39.1.4.1KoritnigiteZn(HAsO4) · H2OTric. 1 : P1

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

20.10.1ErythriteCo3(AsO4)2 · 8H2OMon. 2/m : B2/m
20.10.2CobaltaustiniteCaCo(AsO4)(OH)Orth. 2 2 2 : P21 21 21
20.10.3RoseliteCa2(Co2+,Mg)(AsO4)2 · 2H2OMon. 2/m : P21/b
20.10.4β-RoseliteCa2Co(AsO4)2 · 2H2OTric.
20.10.5WendwilsoniteCa2Mg(AsO4)2 · 2H2OMon. 2/m : P21/b
20.10.7AerugiteNi8.5(AsO4)2As5+O8Mon. 2/m : B2/m
20.10.8XanthiositeNi3(AsO4)2Mon. 2/m : P21/b
20.10.9AnnabergiteNi3(AsO4)2 · 8H2OMon. 2/m : B2/m
20.10.10SmolyaninoviteCo3Fe3+2(AsO4)4 · 11H2OOrth.
20.10.11NickelaustiniteCaNi(AsO4)(OH)Orth. 2 2 2 : P21 21 21

Fluorescence of CobaltkoritnigiteHide

Not fluorescent

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for CobaltkoritnigiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Zeitschrift für anorganische und allgemeine Chemie (1979) 454, 134-144.
Neues Jahrbuch für Mineralogie (1980) Monatshefte, 237.
Schmetzer, K., Horn, W., Medenbach, O. (1981) Über Kobaltkoritnigit, (Co,Zn)[H2O/ AsO3OH], ein neues Mineral und Pitticit, Fe2O3·As2O5·9-10 H2O, ein röntgenamorphes Fe-Arsenat-Hydrat. Neues Jahrbuch für Mineralogie, Monatshefte, 257-266.
Fleischer, M., Burns, R.G., Cabri, L.J., Francis, C.A., Pabst, A. (1982) New mineral names. American Mineralogist, 67, 413-418.

Internet Links for CobaltkoritnigiteHide

Localities for CobaltkoritnigiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Czech Republic
 
  • Karlovy Vary Region
    • Karlovy Vary District
Lapis 2002(7/8), 63-65
    • Slavkovský Les mountains
M.E. Ciriotti, 2006, probed EDX+XRD by S. Möckel
Germany
 
  • Baden-Württemberg
    • Freiburg Region
      • Ortenaukreis
        • Oberwolfach
U. Kolitsch, J. Gröbner, G. Blaß, H.-W. Graf und A. Pring (2005): Neufunde aus der Grube Clara im mittleren Schwarzwald (II): Dreyerit, Gasparit-(Ce), Klinobisvanit, Kobaltkoritnigit, Metatyuyamunit, Roscoelith, Sengierit, Vésigniéit und Wakefieldit. Lapis 30 (9), 35-39; 58. (in German)
      • Rottweil
        • Schenkenzell
          • Wittichen
            • Böckelsbach valley
collection Joachim Esche
Walenta, K. (1987) Neue Mineralien von Wittichen. Lapis. 12 (11): 23-24; Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
            • Burgfelsen
No reference listed
            • Heubach Valley
No reference listed
Collection Elmar Lackner and many others
    • Karlsruhe Region
      • Freudenstadt
        • Alpirsbach
Walenta, K. (1992) Die Mineralien des Schwarzwaldes und ihre Fundstellan. Christian Weise Verlag, München, 336 pages [in German].
  • Hesse
    • Darmstadt
      • Bergstraße
        • Abtsteinach
          • Mackenheim
    • Kassel Region
      • Hersfeld-Rotenburg
        • Nentershausen
          • Süß
            • Richelsdorf Smelter
S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1992
No reference listed
Schmetzer, K., Horn, W., Medenbach, O. (1981) Über Kobaltkoritnigit, (Co, Zn) [H2O/AsO3OH], ein neues Mineral, und Pitticit, Fe2O3•As2O5.9-10H2O, ein rontgenamorphes Fe-Arsenat-Hydrat. Neues Jahrbuch für Mineralogie, Monatshefte, 257-266.; Schnorrer-Köhler, G. (1988) Mineralogische Notizen IV. Der Aufschluss, 39, 153-168.
  • Lower Saxony
    • Goslar District
      • Braunlage
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    • St Andreasberg Mining District
      • Oder valley
Gröbner, J., Hajek, W., Junker, R. & Nikoleizig, J. (2011): Neue Mineralschätze des Harzes. Papierflieger Verlag GmbH, Clausthal-Zellerfeld, Germany, 127 pp.
  • Rhineland-Palatinate
    • Altenkirchen District
      • Kirchen
        • Niederfischbach
Weiss, S. (1990) Mineralfundstellen Atlas, Deutschland West. Weise Verlag, München, 320 pages.
    • Rhein-Lahn District
      • Bad Ems-Nassau
        • Frücht
SEM-EDS, Raman Spectroscopy by Joy Desor and Gerhard Möhn
  • Saxony
Wittern, A. (2001): Mineralfundorte und ihre Minerale in Deutschland. Schweizerbart, Stuttgart, 288 pp.
    • Erzgebirgskreis
      • Annaberg-Buchholz
Handbook of Mineralogy
      • Lauter-Bernsbach
        • Oberpfannenstiel
https://www.mineralienatlas.de/lexikon/index.php/Deutschland/Sachsen/Erzgebirgskreis/Lauter-Bernsbach/Oberpfannenstiel/Stollen%20Nr.%207%20%28Sulfidnaja%29
      • Schneeberg
        • Neustädtel
Lapis 30(7/8):41-70 (2005)
Lapis 30(7/8):41-70 (2005)
Lapis 30(7/8):41-70 (2005)
[Schmetzer et al: N. Jb. Miner. Mh. 1981, 257-266]
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion mining district
          • Plaka
            • Plaka Mines
Rieck, B., Kolitsch, U., Voudouris, P., Giester, G. and Tzeferis, P. (2018): Weitere Neufunde aus Lavrion, Griechenland. Mineralien-Welt 29 (5), 32-77 (in German).
Japan
 
  • Tochigi Prefecture
    • Nikko City
      • Ashio-machi
Okada et al (1994) Abstracts, IMA General Meeting, 1994, 307-308.
Morocco
 
  • Drâa-Tafilalet Region
    • Ouarzazate Province
      • Amerzgane
        • Bou Azzer Mine
Favreau, G., Dietrich, J. E., Meisser, N., Brugger, J., Ait Haddouch, L. & Maacha, L. (2007): Bou Azzer, Morocco. Mineralogical Record 38, 345-407
    • Zagora Province
      • Aghbar
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
      • Aït Ahmane
JP Barral collection
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
      • Ightem
Favreau, G., Dietrich, J. E., Meisser, N., Brugger, J., Ait Haddouch, L. & Maacha, L. (2007): Bou Azzer, Morocco. Mineralogical Record 38, 345-407
      • Tamdrost
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
Spain
 
  • Catalonia
    • Girona (Gerona)
      • Ripollès
        • Camprodon
          • Rocabruna
Joan Rosell
Switzerland
 
  • Valais
    • Sierre
      • Anniviers
        • Saint-Luc
Ansermet, S. (2012): Mines et minéraux du Valais - II. Anniviers et Tourtemagne. With contributions by N. Meisser, Ed. Porte-plumes (Ayer)
 
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